<!DOCTYPE html>
<html>

  <head>
    <meta charset="utf-8">
    <title>Hello MUI</title>
    <meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">

    <link rel="stylesheet" href="../css/mui.min.css">
    <style>
      html,
      body {
        background-color: #efeff4;
      }
    </style>
  </head>

  <body>
    <header class="mui-bar mui-bar-nav">
      <a class="mui-action-back mui-icon mui-icon-left-nav mui-pull-left"></a>
      <h1 id="title" class="mui-title">首页</h1>
    </header>
    <nav class="mui-bar mui-bar-tab">
      <a id="defaultTab" class="mui-tab-item mui-active" href="tab-webview-subpage-about.html">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </a>
      <a class="mui-tab-item" href="tab-webview-subpage-chat.html">
        <span class="mui-icon mui-icon-email"><span class="mui-badge">9</span></span>
        <span class="mui-tab-label">消息</span>
      </a>
      <a class="mui-tab-item" href="tab-webview-subpage-contact.html">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">通讯录</span>
      </a>
      <a class="mui-tab-item" href="tab-webview-subpage-setting.html">
        <span class="mui-icon mui-icon-gear"></span>
        <span class="mui-tab-label">设置</span>
      </a>
    </nav>
    <script src="../js/mui.min.js"></script>
    <script type="text/javascript" charset="utf-8">
       //mui初始化
      mui.init();
      var subpages = ['tab-webview-subpage-about.html', 'tab-webview-subpage-chat.html', 'tab-webview-subpage-contact.html', 'tab-webview-subpage-setting.html'];
      var subpage_style = {
        top: '45px',
        bottom: '51px'
      };
      
      var aniShow = {};
      
       //创建子页面，首个选项卡页面显示，其它均隐藏；
      mui.plusReady(function() {
        var self = plus.webview.currentWebview();
        for (var i = 0; i < 4; i++) {
          var temp = {};
          var sub = plus.webview.create(subpages[i], subpages[i], subpage_style);
          if (i > 0) {
            sub.hide();
          }else{
            temp[subpages[i]] = "true";
            mui.extend(aniShow,temp);
          }
          self.append(sub);
        }
      });
       //当前激活选项
      var activeTab = subpages[0];
      var title = document.getElementById("title");
       //选项卡点击事件
      mui('.mui-bar-tab').on('tap', 'a', function(e) {
        var targetTab = this.getAttribute('href');
        if (targetTab == activeTab) {
          return;
        }
        //更换标题
        title.innerHTML = this.querySelector('.mui-tab-label').innerHTML;
        //显示目标选项卡
        //若为iOS平台或非首次显示，则直接显示
        if(mui.os.ios||aniShow[targetTab]){
          plus.webview.show(targetTab);
        }else{
          //否则，使用fade-in动画，且保存变量
          var temp = {};
          temp[targetTab] = "true";
          mui.extend(aniShow,temp);
          plus.webview.show(targetTab,"fade-in",300);
        }
        //隐藏当前;
        plus.webview.hide(activeTab);
        //更改当前活跃的选项卡
        activeTab = targetTab;
      });
       //自定义事件，模拟点击“首页选项卡”
      document.addEventListener('gohome', function() {
        var defaultTab = document.getElementById("defaultTab");
        //模拟首页点击
        mui.trigger(defaultTab, 'tap');
        //切换选项卡高亮
        var current = document.querySelector(".mui-bar-tab>.mui-tab-item.mui-active");
        if (defaultTab !== current) {
          current.classList.remove('mui-active');
          defaultTab.classList.add('mui-active');
        }
      });
    </script>
  </body>

</html>